Finding the Fourth Proportional to 636,732.18, 878,675.76 and 350,246.16
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Solution
The fourth proportional to 636,732.18, 878,675.76 and 350,246.16 is: 483,331.64
Step by Step Solution
- Step 1: Write the proportion equation
636,732.18 : 878,675.76 = 350,246.16 : x - Step 2: Convert to fraction form
636,732.18/878,675.76 = 350,246.16/x - Step 3: Cross multiply
636,732.18x = 878,675.76 × 350,246.16 - Step 4: Simplify right side
636,732.18x = 307,752,810,825.08 - Step 5: Solve for x
x = 307,752,810,825.08/636,732.18 - Step 6: Final answer
x = 483,331.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.